Driving mechanism for cash-registers.



PATENTED AUG. 11, 1908.

.0.AI.III IIJGRRN. DRIVING MECHANISM FOR CASH REGISTERS.

APPLICATION FILED MAR.15,1906.

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lm/ Macao PATENTED AUG. 1 1

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H G.A.LUNDGREN. DRIVING MECHANISM FOR CASH REGISTERS.

lPPI-IOATION FILED MAR.15,1906.

UNITED sr r s PATENT oEEIoE.

CHARLES A. LUNDGREN, or DAYTON. 011105,,AssIeNomnrMEsIjE Assieunniifrsfro THE NATIONAL CASH REGISTER oonraur, or QAYTON,,OHIQRAQOORPORATIQN or Oh o,

(INCORPORATED IN 1906.)

:onrvme measures-r03 casn-iiners'runs.

Specification ofLetters Patent.

Patented. Aug. 11, 1908.

Application filed liarch is, 1906. s mi No. 806,216. I

'Dayton, in the county ofMontgomery and State of Ohio, have invented certain new and useful Im rovements in Driving Mechanism for Cashegisters, of which I declare the follfiowing to be a full, clear, and exact descripion.

This invention relates to cash registers,- and has for its object to provide an im proved operating devicefor the same.

In establishments where the register is in almost constant or. in frequent use, the contlnued operation becomes tiresome to the operator, and itis therefore desirable to pro-.

vide a motor device which will save the operfator this fatigue. Electric motors have been heretofore used in this connection, but in many establishments the electric current necessitated for their operation is not to be had. In many such places, however,'water power is available, and this invention is art1cularly designed to beused in estab ishments of that class.

ter motor and connections for operating the register, and a key or equivalent 'forcontrol pressure to ling the admission of fluid under the motor. With these and incidental objects in view, the invention consists in certain novel features of construction and combinations of 4 arts, the essential elements of which are set orth in appended claims and a preferred form of embodiment of'which is hereinafter specifically described with reference to the.

drawings which accompany and form part of this specification. V u

Of said drawings: Figure 1 is a transverse elevation of a 'machine to which the motor may be adapted. Fig.2 is a vertical section of the motor-cylinder and the controlling valve. Fig. 3 IS an elevation showing the motor attached to the register, and Figs. 4, 5

and 6 are details ofconstruction.

Described in generalterms, the machine comprises a series of keys 10 pivoted on a shaft 11 and arranged at the rear ends to 0p? erate the usual ke coupler 12. The key 0011 ler has fastene thereto a depending bar 13, aving an anti-friction. roller 14 at the end thereof adapted to move in a slot in the side of the machine. Mountedon a shaft 15 is a cam 16, arranged to rotate and move the anti-friction roller 14 and thereby elevate Thisshaft 15 has on the outthe coupler 12.

side of the machine, as shown inFig. 3.,apinion 17geared to a segment 18. This segment has mounted thereon a spring 19for returning it to its normal position, asshown in this figure,-and is connected to a link 20 which is pivoted to the reciprocating iston 21 of'the water motor. As shown in fig. 2, this iston reciprocates in a cylinder 22, and

admissiorl of fluid to the lower part of the cylinder is controlled by the valve mechanism 23, much as is usualin steam engines.

,Joiiied by a link 24 .to' the valve mechanism 23 .is the key 25, which is-pivoted on a shaft 26, and which controls the operation of the machine.

In Fig. 2 the valve mechanism is shown in its normal osition, and when the key 25 is de ressed t is mechanism is raised, as will be evident, to allow admission of the fluid to the cylinder through entrance port 27. The piston 21 thereupon rises,rotatin -shaft 15 and cam '16, which thereby oscil ates the key The lnvention, therefore, comprises a wacoupler 12 to which the operated value key is coupled and operates the machine.

The a aratus as heretofore described is a thoroug y operative device, but additional return of the controlhng key 25 to its normal osition. Av spring 28 1s primarily provided or this. purpose, and as is also shown there is ride on the cam31, shown in detail in Fig.5,

and which is also ori shaft15y This shaft 15 when rotated in a clock-wise direction m Figz3 will, as is evident, cause pin 30 on mechanism has been rovided to assist in the lever 29 to be elevated. This lever 29 will also be moved laterally. leaf-spring31,

b this motion being allowed i i y the cam-notch- 32 on the lever 29, so that the lever 29 is not only raised but is also allowed to swing laterally under pressure of the spring 31*.so that it is then directly over the key 25. A pin 32" on the machine frame serves to swing the lever 29 laterally as it moves u wardly, inasmuch as the pin is in the path of the cut away portion or cam notch 32 on the lever. When the pin 30 rides off the high edge of cam 31, lever 29 will drop to the position shown in Fig. 3, and will thereby give key a tap to assist in its own return to normal position under control of its spring 28. A spring 33 assists in the return of lever 29 to its normal position. 'The peculiar shape of the high part of cam 31, as shown in Fig. 5, is required by the fact that this cam oscillates and does not always move in the same direction. When the pin 30 dro s from the high edge of the cam 31 it would e impossible to reversely rotate the cam, unless the cut-away portion, as shown in this figure, was rovided.

W iile the form of mechanism here shown and described is admirably adapted to fulfil the objects primarily stated, it is to be understood that it is not intended to confine the invention to the one form of embodiment herein disclosed, for it is susceptible of embodiment in various forms all coming within the scope of the claims which follow.

For convenience in illustration I have shown my invention as applied to a well known type of machine in which a coupler is used to provide for the simultaneous operation of a number of keys. The invention however is not limited to use with this type of machine nor to any type of machine in which the power is applied through key levers, but may equally well be used with many other types of machines such, for ex ample as those in which the keys act as stops for movable parts, or in which the keys release parts from'a holding device, or in fact to any machine which is adapted to perform the functions of a cash register.

"hat is claimed is as follows;

1. In a cash register, the combination with a main operating member, of a motor for moving same, a key controlling the motor, a lever for restoring the key to normal position, a pinion driven by said motor, and a cam moved by said pinion and constructed to cause engagement of said key and lever.

2. In an accounting machine, the combi nation with a movable member, of an oscillating device for operating said member, and means for control 'ng said oscillating device comprising a link connected to said device, a cylinder, a piston in said cylinder connected to said link, a key, and a valve operated by said key and controlling the ingress and egress of fluid to said cylinder.

3. In an accounting device, the combination with an operating mechanism, of a motor for operating same, a movable key for controlling said motor, and means for return ing the key to normal position comprising an oscillatory shaft, a cam on said shaft having a beveled face, a lever having a cam surface and a pin engaging said beveled cam, said lever engaging said key.

4. In an accounting device, the combination with a key of means for restoring said key to normal, comprising a lever pivoted to swin in two directions, spn'n s for swinging said Iever, a cam for moving t e lever in one direction anda pin for moving the lever in another direction.

5. In an accounting device, the combination with a plurality of keys, a key coupler common thereto, a lever connected to said coupler, a cam for operating said lever, and a fluid operated motor for operating said cam, said motor comprising a cylinder, a piston therein, and a valve controlling the ingress and egress of fluid to said cylinder.

In testimony whereof I afiix my signature in the presence of two witnesses.

' CHARLES A. LUNDGREN.

Witnesses:

J. B. HAYWARD, CARL W. BEUST. 

